| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 4.7 / 5 (440 reviews) | Barcelona, Spain | — | 23,000+ treatments | Proton-beam therapy, advanced imaging systems, robotic patient positioning | Pediatric and adult brain/spine tumors | Uses Proteus One® system with 220° beam rotation for precision. Offers personalized plans with 70,000+ patients treated globally using IBA technology. JCI-accredited center. | Joint Commission International , European Foundation for Quality Management |